4.1 Pointers Beginning

// More tutorials at BrandonHok.com

#include <iostream>

// C++ Crackdown 4.1 - Pointer Beginnings

// What are pointers you may ask?
// A pointer in its simplest term is just
// an arrow that points to a specific memory address
// -> 1008 Fire Storm Miami

// What is the purpose of a pointer?
// To save memory space and for large variables.

// Metaphor Example
// If I live on 1008 Fire Storm Miami
// Then the pointer is literally the ->
// Or sign that says [To The Right Is 1008 Fire Storm Miami]
// A sign just points to an address, but the actual sign is not the house.
// A sign just "points" to the specific desired address.

// Metaphor Example
// We are at a parking lot together.
// I ask you to tell me where is the red car.
// You point with your finger at the red car.
// Obviously the answer is not your finger, but I can look
// at your finger and it will point me towards the answer.
// I can ask you to use your other fingers to point me at different
// color cars (where other data points are found).


int main()

{
    // Section 1
    // Type the following code below until Section 2.

    // Declare our first variable
    int y[5] = { 10,2,3,4,5 };
    // declare our pointer and intitalize it to the address(&) of y
    int *x = &y[0];

    // Take a look at the numbers and check it out
    // How about changing *x to &x, you'll see something special like a computer address
    // Surprise!
    std::cout << y << std::endl;
    system("pause");

    // Section 2
    // Now you may type in the rest of the code =)
    // Look carefully and see what are the differences between thw two
    std::cout << x << std::endl;
    std::cout <<*x;
    std::cout << *(x + 3);
    system("pause");

}